./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f932166-edd0-42e2-aa82-2a8fb31b2811/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f932166-edd0-42e2-aa82-2a8fb31b2811/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f932166-edd0-42e2-aa82-2a8fb31b2811/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f932166-edd0-42e2-aa82-2a8fb31b2811/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f932166-edd0-42e2-aa82-2a8fb31b2811/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f932166-edd0-42e2-aa82-2a8fb31b2811/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:36:23,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:36:23,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:36:23,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:36:23,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:36:23,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:36:23,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:36:23,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:36:23,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:36:23,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:36:23,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:36:23,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:36:23,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:36:23,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:36:23,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:36:23,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:36:23,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:36:23,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:36:23,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:36:23,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:36:23,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:36:23,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:36:23,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:36:23,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:36:23,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:36:23,926 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:36:23,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:36:23,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:36:23,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:36:23,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:36:23,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:36:23,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:36:23,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:36:23,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:36:23,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:36:23,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:36:23,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:36:23,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:36:23,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:36:23,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:36:23,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:36:23,944 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f932166-edd0-42e2-aa82-2a8fb31b2811/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-10-17 10:36:24,013 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:36:24,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:36:24,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:36:24,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:36:24,021 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:36:24,021 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:36:24,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:36:24,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:36:24,023 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:36:24,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:36:24,024 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:36:24,025 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:36:24,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:36:24,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:36:24,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:36:24,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:36:24,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:36:24,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:36:24,027 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-10-17 10:36:24,027 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:36:24,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:36:24,027 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:36:24,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:36:24,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:36:24,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:36:24,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:36:24,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:36:24,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:36:24,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:36:24,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:36:24,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:36:24,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:36:24,037 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:36:24,038 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:36:24,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:36:24,038 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f932166-edd0-42e2-aa82-2a8fb31b2811/bin/uautomizer-J5u9QxTXDZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f932166-edd0-42e2-aa82-2a8fb31b2811/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d221fe111612a5fd289edcbc5a129acf7ca50098e249efcc8da191d610ed6fb [2022-10-17 10:36:24,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:36:24,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:36:24,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:36:24,402 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:36:24,403 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:36:24,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f932166-edd0-42e2-aa82-2a8fb31b2811/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i [2022-10-17 10:36:24,481 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f932166-edd0-42e2-aa82-2a8fb31b2811/bin/uautomizer-J5u9QxTXDZ/data/558bcd203/e9e997eea06a4949bb09195dbf0374ce/FLAGd57fb0ab8 [2022-10-17 10:36:25,322 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:36:25,323 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f932166-edd0-42e2-aa82-2a8fb31b2811/sv-benchmarks/c/goblint-regression/09-regions_05-ptra_rc.i [2022-10-17 10:36:25,353 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f932166-edd0-42e2-aa82-2a8fb31b2811/bin/uautomizer-J5u9QxTXDZ/data/558bcd203/e9e997eea06a4949bb09195dbf0374ce/FLAGd57fb0ab8 [2022-10-17 10:36:25,490 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f932166-edd0-42e2-aa82-2a8fb31b2811/bin/uautomizer-J5u9QxTXDZ/data/558bcd203/e9e997eea06a4949bb09195dbf0374ce [2022-10-17 10:36:25,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:36:25,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:36:25,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:36:25,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:36:25,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:36:25,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:36:25" (1/1) ... [2022-10-17 10:36:25,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49800944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:25, skipping insertion in model container [2022-10-17 10:36:25,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:36:25" (1/1) ... [2022-10-17 10:36:25,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:36:25,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:36:26,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:36:26,385 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:36:26,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:36:26,614 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:36:26,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:26 WrapperNode [2022-10-17 10:36:26,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:36:26,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:36:26,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:36:26,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:36:26,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:26" (1/1) ... [2022-10-17 10:36:26,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:26" (1/1) ... [2022-10-17 10:36:26,740 INFO L138 Inliner]: procedures = 369, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 212 [2022-10-17 10:36:26,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:36:26,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:36:26,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:36:26,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:36:26,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:26" (1/1) ... [2022-10-17 10:36:26,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:26" (1/1) ... [2022-10-17 10:36:26,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:26" (1/1) ... [2022-10-17 10:36:26,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:26" (1/1) ... [2022-10-17 10:36:26,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:26" (1/1) ... [2022-10-17 10:36:26,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:26" (1/1) ... [2022-10-17 10:36:26,840 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:26" (1/1) ... [2022-10-17 10:36:26,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:26" (1/1) ... [2022-10-17 10:36:26,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:36:26,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:36:26,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:36:26,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:36:26,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:26" (1/1) ... [2022-10-17 10:36:26,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:36:26,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f932166-edd0-42e2-aa82-2a8fb31b2811/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:36:26,929 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f932166-edd0-42e2-aa82-2a8fb31b2811/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:36:26,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f932166-edd0-42e2-aa82-2a8fb31b2811/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:36:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:36:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:36:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:36:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:36:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:36:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-10-17 10:36:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:36:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:36:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:36:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-10-17 10:36:26,978 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-10-17 10:36:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:36:26,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:36:26,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:36:26,980 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 10:36:27,185 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:36:27,188 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:36:27,777 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:36:27,807 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:36:27,822 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:36:27,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:36:27 BoogieIcfgContainer [2022-10-17 10:36:27,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:36:27,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:36:27,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:36:27,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:36:27,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:36:25" (1/3) ... [2022-10-17 10:36:27,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369eaef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:36:27, skipping insertion in model container [2022-10-17 10:36:27,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:26" (2/3) ... [2022-10-17 10:36:27,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369eaef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:36:27, skipping insertion in model container [2022-10-17 10:36:27,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:36:27" (3/3) ... [2022-10-17 10:36:27,838 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_05-ptra_rc.i [2022-10-17 10:36:27,848 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 10:36:27,865 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:36:27,865 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-10-17 10:36:27,866 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 10:36:28,039 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-17 10:36:28,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 250 transitions, 505 flow [2022-10-17 10:36:28,249 INFO L130 PetriNetUnfolder]: 0/249 cut-off events. [2022-10-17 10:36:28,249 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:36:28,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 249 events. 0/249 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 92 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-10-17 10:36:28,252 INFO L82 GeneralOperation]: Start removeDead. Operand has 254 places, 250 transitions, 505 flow [2022-10-17 10:36:28,262 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 253 places, 249 transitions, 501 flow [2022-10-17 10:36:28,282 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:36:28,295 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@741fb24f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:36:28,295 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-10-17 10:36:28,325 INFO L130 PetriNetUnfolder]: 0/46 cut-off events. [2022-10-17 10:36:28,326 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:36:28,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:36:28,327 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:28,328 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-10-17 10:36:28,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:28,340 INFO L85 PathProgramCache]: Analyzing trace with hash 610496887, now seen corresponding path program 1 times [2022-10-17 10:36:28,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:28,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206871957] [2022-10-17 10:36:28,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:28,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:29,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:36:29,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:29,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206871957] [2022-10-17 10:36:29,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206871957] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:29,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:29,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:36:29,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935442936] [2022-10-17 10:36:29,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:29,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:36:29,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:29,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:36:29,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:36:29,635 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 250 [2022-10-17 10:36:29,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 249 transitions, 501 flow. Second operand has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:29,649 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:36:29,649 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 250 [2022-10-17 10:36:29,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:36:30,518 INFO L130 PetriNetUnfolder]: 360/1314 cut-off events. [2022-10-17 10:36:30,519 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-10-17 10:36:30,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2139 conditions, 1314 events. 360/1314 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6672 event pairs, 360 based on Foata normal form. 0/1138 useless extension candidates. Maximal degree in co-relation 1934. Up to 806 conditions per place. [2022-10-17 10:36:30,545 INFO L137 encePairwiseOnDemand]: 232/250 looper letters, 85 selfloop transitions, 15 changer transitions 0/246 dead transitions. [2022-10-17 10:36:30,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 246 transitions, 695 flow [2022-10-17 10:36:30,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:36:30,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:36:30,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 985 transitions. [2022-10-17 10:36:30,578 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6566666666666666 [2022-10-17 10:36:30,579 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 985 transitions. [2022-10-17 10:36:30,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 985 transitions. [2022-10-17 10:36:30,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:36:30,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 985 transitions. [2022-10-17 10:36:30,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 164.16666666666666) internal successors, (985), 6 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:30,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:30,612 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:30,614 INFO L175 Difference]: Start difference. First operand has 253 places, 249 transitions, 501 flow. Second operand 6 states and 985 transitions. [2022-10-17 10:36:30,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 246 transitions, 695 flow [2022-10-17 10:36:30,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 246 transitions, 694 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-10-17 10:36:30,631 INFO L231 Difference]: Finished difference. Result has 254 places, 246 transitions, 524 flow [2022-10-17 10:36:30,634 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=524, PETRI_PLACES=254, PETRI_TRANSITIONS=246} [2022-10-17 10:36:30,638 INFO L287 CegarLoopForPetriNet]: 253 programPoint places, 1 predicate places. [2022-10-17 10:36:30,639 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 246 transitions, 524 flow [2022-10-17 10:36:30,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.5) internal successors, (891), 6 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:30,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:36:30,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:30,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:36:30,641 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-10-17 10:36:30,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:30,643 INFO L85 PathProgramCache]: Analyzing trace with hash -2061078139, now seen corresponding path program 1 times [2022-10-17 10:36:30,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:30,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327680369] [2022-10-17 10:36:30,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:30,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:31,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:36:31,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:31,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327680369] [2022-10-17 10:36:31,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327680369] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:31,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:31,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:36:31,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371275426] [2022-10-17 10:36:31,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:31,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:36:31,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:31,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:36:31,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:36:31,304 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 250 [2022-10-17 10:36:31,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 246 transitions, 524 flow. Second operand has 6 states, 6 states have (on average 149.5) internal successors, (897), 6 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:31,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:36:31,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 250 [2022-10-17 10:36:31,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:36:31,935 INFO L130 PetriNetUnfolder]: 360/1308 cut-off events. [2022-10-17 10:36:31,936 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-10-17 10:36:31,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2145 conditions, 1308 events. 360/1308 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6672 event pairs, 360 based on Foata normal form. 0/1136 useless extension candidates. Maximal degree in co-relation 1955. Up to 803 conditions per place. [2022-10-17 10:36:31,947 INFO L137 encePairwiseOnDemand]: 232/250 looper letters, 82 selfloop transitions, 15 changer transitions 0/243 dead transitions. [2022-10-17 10:36:31,947 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 243 transitions, 712 flow [2022-10-17 10:36:31,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:36:31,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:36:31,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 982 transitions. [2022-10-17 10:36:31,953 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6546666666666666 [2022-10-17 10:36:31,953 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 982 transitions. [2022-10-17 10:36:31,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 982 transitions. [2022-10-17 10:36:31,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:36:31,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 982 transitions. [2022-10-17 10:36:31,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.66666666666666) internal successors, (982), 6 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:31,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:31,966 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:31,966 INFO L175 Difference]: Start difference. First operand has 254 places, 246 transitions, 524 flow. Second operand 6 states and 982 transitions. [2022-10-17 10:36:31,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 243 transitions, 712 flow [2022-10-17 10:36:31,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 243 transitions, 682 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-10-17 10:36:31,978 INFO L231 Difference]: Finished difference. Result has 251 places, 243 transitions, 518 flow [2022-10-17 10:36:31,978 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=518, PETRI_PLACES=251, PETRI_TRANSITIONS=243} [2022-10-17 10:36:31,979 INFO L287 CegarLoopForPetriNet]: 253 programPoint places, -2 predicate places. [2022-10-17 10:36:31,980 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 243 transitions, 518 flow [2022-10-17 10:36:31,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.5) internal successors, (897), 6 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:31,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:36:31,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:31,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:36:31,982 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-10-17 10:36:31,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:31,983 INFO L85 PathProgramCache]: Analyzing trace with hash -467481932, now seen corresponding path program 1 times [2022-10-17 10:36:31,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:31,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768751622] [2022-10-17 10:36:31,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:31,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:36:32,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:32,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768751622] [2022-10-17 10:36:32,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768751622] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:32,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:32,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:36:32,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487454581] [2022-10-17 10:36:32,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:32,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:36:32,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:32,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:36:32,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:36:32,075 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 250 [2022-10-17 10:36:32,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 243 transitions, 518 flow. Second operand has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:32,078 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:36:32,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 250 [2022-10-17 10:36:32,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:36:32,215 INFO L130 PetriNetUnfolder]: 18/393 cut-off events. [2022-10-17 10:36:32,215 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:36:32,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 393 events. 18/393 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 822 event pairs, 18 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 308. Up to 56 conditions per place. [2022-10-17 10:36:32,219 INFO L137 encePairwiseOnDemand]: 247/250 looper letters, 19 selfloop transitions, 2 changer transitions 0/242 dead transitions. [2022-10-17 10:36:32,219 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 242 transitions, 558 flow [2022-10-17 10:36:32,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:36:32,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:36:32,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 706 transitions. [2022-10-17 10:36:32,223 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9413333333333334 [2022-10-17 10:36:32,224 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 706 transitions. [2022-10-17 10:36:32,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 706 transitions. [2022-10-17 10:36:32,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:36:32,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 706 transitions. [2022-10-17 10:36:32,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:32,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 250.0) internal successors, (1000), 4 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:32,233 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 250.0) internal successors, (1000), 4 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:32,233 INFO L175 Difference]: Start difference. First operand has 251 places, 243 transitions, 518 flow. Second operand 3 states and 706 transitions. [2022-10-17 10:36:32,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 242 transitions, 558 flow [2022-10-17 10:36:32,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 242 transitions, 528 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-10-17 10:36:32,243 INFO L231 Difference]: Finished difference. Result has 247 places, 242 transitions, 490 flow [2022-10-17 10:36:32,244 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=247, PETRI_TRANSITIONS=242} [2022-10-17 10:36:32,245 INFO L287 CegarLoopForPetriNet]: 253 programPoint places, -6 predicate places. [2022-10-17 10:36:32,246 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 242 transitions, 490 flow [2022-10-17 10:36:32,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.33333333333334) internal successors, (688), 3 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:32,247 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:36:32,247 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:32,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:36:32,248 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-10-17 10:36:32,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:32,249 INFO L85 PathProgramCache]: Analyzing trace with hash 741524576, now seen corresponding path program 1 times [2022-10-17 10:36:32,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:32,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421404407] [2022-10-17 10:36:32,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:32,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:32,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:36:32,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:32,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421404407] [2022-10-17 10:36:32,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421404407] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:32,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:32,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:36:32,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615553266] [2022-10-17 10:36:32,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:32,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:36:32,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:32,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:36:32,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:36:32,344 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 250 [2022-10-17 10:36:32,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 242 transitions, 490 flow. Second operand has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:32,346 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:36:32,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 250 [2022-10-17 10:36:32,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:36:32,437 INFO L130 PetriNetUnfolder]: 8/338 cut-off events. [2022-10-17 10:36:32,438 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-10-17 10:36:32,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 338 events. 8/338 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 500 event pairs, 8 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 303. Up to 27 conditions per place. [2022-10-17 10:36:32,440 INFO L137 encePairwiseOnDemand]: 244/250 looper letters, 12 selfloop transitions, 1 changer transitions 0/237 dead transitions. [2022-10-17 10:36:32,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 237 transitions, 506 flow [2022-10-17 10:36:32,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:36:32,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:36:32,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 711 transitions. [2022-10-17 10:36:32,444 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.948 [2022-10-17 10:36:32,445 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 711 transitions. [2022-10-17 10:36:32,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 711 transitions. [2022-10-17 10:36:32,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:36:32,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 711 transitions. [2022-10-17 10:36:32,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 237.0) internal successors, (711), 3 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:32,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 250.0) internal successors, (1000), 4 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:32,457 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 250.0) internal successors, (1000), 4 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:32,457 INFO L175 Difference]: Start difference. First operand has 247 places, 242 transitions, 490 flow. Second operand 3 states and 711 transitions. [2022-10-17 10:36:32,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 237 transitions, 506 flow [2022-10-17 10:36:32,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 237 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:36:32,466 INFO L231 Difference]: Finished difference. Result has 242 places, 237 transitions, 478 flow [2022-10-17 10:36:32,467 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=242, PETRI_TRANSITIONS=237} [2022-10-17 10:36:32,468 INFO L287 CegarLoopForPetriNet]: 253 programPoint places, -11 predicate places. [2022-10-17 10:36:32,469 INFO L495 AbstractCegarLoop]: Abstraction has has 242 places, 237 transitions, 478 flow [2022-10-17 10:36:32,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 232.33333333333334) internal successors, (697), 3 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:32,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:36:32,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:32,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:36:32,477 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-10-17 10:36:32,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:32,477 INFO L85 PathProgramCache]: Analyzing trace with hash 518088406, now seen corresponding path program 1 times [2022-10-17 10:36:32,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:32,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003270630] [2022-10-17 10:36:32,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:32,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:32,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:36:33,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:33,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003270630] [2022-10-17 10:36:33,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003270630] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:33,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:33,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:36:33,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495685016] [2022-10-17 10:36:33,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:33,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:36:33,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:33,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:36:33,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:36:33,233 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 250 [2022-10-17 10:36:33,236 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 237 transitions, 478 flow. Second operand has 6 states, 6 states have (on average 160.16666666666666) internal successors, (961), 6 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:33,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:36:33,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 250 [2022-10-17 10:36:33,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:36:33,752 INFO L130 PetriNetUnfolder]: 416/1386 cut-off events. [2022-10-17 10:36:33,752 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:36:33,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2312 conditions, 1386 events. 416/1386 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6981 event pairs, 416 based on Foata normal form. 0/1235 useless extension candidates. Maximal degree in co-relation 2230. Up to 916 conditions per place. [2022-10-17 10:36:33,765 INFO L137 encePairwiseOnDemand]: 244/250 looper letters, 83 selfloop transitions, 5 changer transitions 0/236 dead transitions. [2022-10-17 10:36:33,765 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 236 transitions, 652 flow [2022-10-17 10:36:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:36:33,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:36:33,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1019 transitions. [2022-10-17 10:36:33,770 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6793333333333333 [2022-10-17 10:36:33,770 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1019 transitions. [2022-10-17 10:36:33,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1019 transitions. [2022-10-17 10:36:33,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:36:33,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1019 transitions. [2022-10-17 10:36:33,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 169.83333333333334) internal successors, (1019), 6 states have internal predecessors, (1019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:33,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:33,782 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:33,782 INFO L175 Difference]: Start difference. First operand has 242 places, 237 transitions, 478 flow. Second operand 6 states and 1019 transitions. [2022-10-17 10:36:33,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 236 transitions, 652 flow [2022-10-17 10:36:33,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 236 transitions, 651 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-10-17 10:36:33,791 INFO L231 Difference]: Finished difference. Result has 245 places, 236 transitions, 485 flow [2022-10-17 10:36:33,792 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=485, PETRI_PLACES=245, PETRI_TRANSITIONS=236} [2022-10-17 10:36:33,795 INFO L287 CegarLoopForPetriNet]: 253 programPoint places, -8 predicate places. [2022-10-17 10:36:33,795 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 236 transitions, 485 flow [2022-10-17 10:36:33,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 160.16666666666666) internal successors, (961), 6 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:33,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:36:33,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:33,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:36:33,797 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-10-17 10:36:33,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:33,801 INFO L85 PathProgramCache]: Analyzing trace with hash 563099613, now seen corresponding path program 1 times [2022-10-17 10:36:33,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:33,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754466330] [2022-10-17 10:36:33,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:33,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:33,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:36:33,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:33,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754466330] [2022-10-17 10:36:33,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754466330] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:33,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:33,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:36:33,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735765529] [2022-10-17 10:36:33,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:33,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:36:33,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:33,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:36:33,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:36:33,909 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 250 [2022-10-17 10:36:33,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 236 transitions, 485 flow. Second operand has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:33,912 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:36:33,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 250 [2022-10-17 10:36:33,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:36:33,964 INFO L130 PetriNetUnfolder]: 0/235 cut-off events. [2022-10-17 10:36:33,964 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:36:33,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 235 events. 0/235 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 84 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2022-10-17 10:36:33,966 INFO L137 encePairwiseOnDemand]: 247/250 looper letters, 7 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2022-10-17 10:36:33,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 235 transitions, 501 flow [2022-10-17 10:36:33,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:36:33,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:36:33,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 730 transitions. [2022-10-17 10:36:33,970 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9733333333333334 [2022-10-17 10:36:33,970 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 730 transitions. [2022-10-17 10:36:33,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 730 transitions. [2022-10-17 10:36:33,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:36:33,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 730 transitions. [2022-10-17 10:36:33,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 243.33333333333334) internal successors, (730), 3 states have internal predecessors, (730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:33,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 250.0) internal successors, (1000), 4 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:33,977 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 250.0) internal successors, (1000), 4 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:33,977 INFO L175 Difference]: Start difference. First operand has 245 places, 236 transitions, 485 flow. Second operand 3 states and 730 transitions. [2022-10-17 10:36:33,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 235 transitions, 501 flow [2022-10-17 10:36:33,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 235 transitions, 491 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-10-17 10:36:33,986 INFO L231 Difference]: Finished difference. Result has 241 places, 235 transitions, 477 flow [2022-10-17 10:36:33,986 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=477, PETRI_PLACES=241, PETRI_TRANSITIONS=235} [2022-10-17 10:36:33,990 INFO L287 CegarLoopForPetriNet]: 253 programPoint places, -12 predicate places. [2022-10-17 10:36:33,990 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 235 transitions, 477 flow [2022-10-17 10:36:33,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:33,991 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:36:33,991 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:33,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:36:33,992 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-10-17 10:36:33,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:33,992 INFO L85 PathProgramCache]: Analyzing trace with hash -313359700, now seen corresponding path program 1 times [2022-10-17 10:36:33,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:33,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039381159] [2022-10-17 10:36:33,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:33,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:34,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:36:34,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:34,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039381159] [2022-10-17 10:36:34,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039381159] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:34,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:34,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:36:34,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135162797] [2022-10-17 10:36:34,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:34,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:36:34,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:34,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:36:34,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:36:34,122 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 243 out of 250 [2022-10-17 10:36:34,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 235 transitions, 477 flow. Second operand has 3 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:34,124 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:36:34,124 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 243 of 250 [2022-10-17 10:36:34,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:36:34,168 INFO L130 PetriNetUnfolder]: 0/234 cut-off events. [2022-10-17 10:36:34,168 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-10-17 10:36:34,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 247 conditions, 234 events. 0/234 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 79 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-10-17 10:36:34,170 INFO L137 encePairwiseOnDemand]: 248/250 looper letters, 4 selfloop transitions, 1 changer transitions 0/234 dead transitions. [2022-10-17 10:36:34,170 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 234 transitions, 485 flow [2022-10-17 10:36:34,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:36:34,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:36:34,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2022-10-17 10:36:34,173 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.98 [2022-10-17 10:36:34,173 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2022-10-17 10:36:34,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2022-10-17 10:36:34,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:36:34,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2022-10-17 10:36:34,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:34,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 250.0) internal successors, (1000), 4 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:34,183 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 250.0) internal successors, (1000), 4 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:34,183 INFO L175 Difference]: Start difference. First operand has 241 places, 235 transitions, 477 flow. Second operand 3 states and 735 transitions. [2022-10-17 10:36:34,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 234 transitions, 485 flow [2022-10-17 10:36:34,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 234 transitions, 481 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:36:34,190 INFO L231 Difference]: Finished difference. Result has 240 places, 234 transitions, 473 flow [2022-10-17 10:36:34,191 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=473, PETRI_PLACES=240, PETRI_TRANSITIONS=234} [2022-10-17 10:36:34,192 INFO L287 CegarLoopForPetriNet]: 253 programPoint places, -13 predicate places. [2022-10-17 10:36:34,192 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 234 transitions, 473 flow [2022-10-17 10:36:34,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:34,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:36:34,194 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:34,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:36:34,194 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-10-17 10:36:34,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:34,195 INFO L85 PathProgramCache]: Analyzing trace with hash 147558708, now seen corresponding path program 1 times [2022-10-17 10:36:34,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:34,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399858005] [2022-10-17 10:36:34,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:34,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:35,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:36:35,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:35,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399858005] [2022-10-17 10:36:35,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399858005] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:35,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:35,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:36:35,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625412879] [2022-10-17 10:36:35,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:35,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:36:35,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:35,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:36:35,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:36:35,149 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 250 [2022-10-17 10:36:35,151 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 234 transitions, 473 flow. Second operand has 6 states, 6 states have (on average 165.66666666666666) internal successors, (994), 6 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:35,151 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:36:35,151 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 250 [2022-10-17 10:36:35,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:36:36,301 INFO L130 PetriNetUnfolder]: 748/2393 cut-off events. [2022-10-17 10:36:36,301 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:36:36,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4032 conditions, 2393 events. 748/2393 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 14960 event pairs, 75 based on Foata normal form. 0/2145 useless extension candidates. Maximal degree in co-relation 3951. Up to 791 conditions per place. [2022-10-17 10:36:36,323 INFO L137 encePairwiseOnDemand]: 222/250 looper letters, 171 selfloop transitions, 70 changer transitions 0/390 dead transitions. [2022-10-17 10:36:36,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 390 transitions, 1267 flow [2022-10-17 10:36:36,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:36:36,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:36:36,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1191 transitions. [2022-10-17 10:36:36,330 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.794 [2022-10-17 10:36:36,330 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1191 transitions. [2022-10-17 10:36:36,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1191 transitions. [2022-10-17 10:36:36,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:36:36,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1191 transitions. [2022-10-17 10:36:36,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:36,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:36,343 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:36,344 INFO L175 Difference]: Start difference. First operand has 240 places, 234 transitions, 473 flow. Second operand 6 states and 1191 transitions. [2022-10-17 10:36:36,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 390 transitions, 1267 flow [2022-10-17 10:36:36,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 390 transitions, 1266 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-10-17 10:36:36,361 INFO L231 Difference]: Finished difference. Result has 248 places, 304 transitions, 950 flow [2022-10-17 10:36:36,361 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=950, PETRI_PLACES=248, PETRI_TRANSITIONS=304} [2022-10-17 10:36:36,364 INFO L287 CegarLoopForPetriNet]: 253 programPoint places, -5 predicate places. [2022-10-17 10:36:36,365 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 304 transitions, 950 flow [2022-10-17 10:36:36,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.66666666666666) internal successors, (994), 6 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:36,366 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:36:36,366 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:36,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 10:36:36,367 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-10-17 10:36:36,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:36,368 INFO L85 PathProgramCache]: Analyzing trace with hash 753120510, now seen corresponding path program 1 times [2022-10-17 10:36:36,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:36,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690570374] [2022-10-17 10:36:36,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:36,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:37,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:36:37,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:37,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690570374] [2022-10-17 10:36:37,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690570374] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:37,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:37,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:36:37,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983070718] [2022-10-17 10:36:37,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:37,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:36:37,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:37,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:36:37,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:36:37,330 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 250 [2022-10-17 10:36:37,332 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 304 transitions, 950 flow. Second operand has 6 states, 6 states have (on average 166.5) internal successors, (999), 6 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:37,332 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:36:37,332 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 250 [2022-10-17 10:36:37,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:36:38,340 INFO L130 PetriNetUnfolder]: 836/2701 cut-off events. [2022-10-17 10:36:38,340 INFO L131 PetriNetUnfolder]: For 881/881 co-relation queries the response was YES. [2022-10-17 10:36:38,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5945 conditions, 2701 events. 836/2701 cut-off events. For 881/881 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 17247 event pairs, 379 based on Foata normal form. 0/2514 useless extension candidates. Maximal degree in co-relation 5862. Up to 1700 conditions per place. [2022-10-17 10:36:38,369 INFO L137 encePairwiseOnDemand]: 235/250 looper letters, 166 selfloop transitions, 48 changer transitions 0/364 dead transitions. [2022-10-17 10:36:38,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 364 transitions, 1594 flow [2022-10-17 10:36:38,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:36:38,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:36:38,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1091 transitions. [2022-10-17 10:36:38,375 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7273333333333334 [2022-10-17 10:36:38,376 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1091 transitions. [2022-10-17 10:36:38,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1091 transitions. [2022-10-17 10:36:38,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:36:38,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1091 transitions. [2022-10-17 10:36:38,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:38,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:38,389 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:38,390 INFO L175 Difference]: Start difference. First operand has 248 places, 304 transitions, 950 flow. Second operand 6 states and 1091 transitions. [2022-10-17 10:36:38,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 364 transitions, 1594 flow [2022-10-17 10:36:38,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 364 transitions, 1594 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-10-17 10:36:38,412 INFO L231 Difference]: Finished difference. Result has 258 places, 347 transitions, 1338 flow [2022-10-17 10:36:38,413 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1338, PETRI_PLACES=258, PETRI_TRANSITIONS=347} [2022-10-17 10:36:38,414 INFO L287 CegarLoopForPetriNet]: 253 programPoint places, 5 predicate places. [2022-10-17 10:36:38,414 INFO L495 AbstractCegarLoop]: Abstraction has has 258 places, 347 transitions, 1338 flow [2022-10-17 10:36:38,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.5) internal successors, (999), 6 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:38,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:36:38,416 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:38,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 10:36:38,417 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-10-17 10:36:38,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:38,417 INFO L85 PathProgramCache]: Analyzing trace with hash 2099992973, now seen corresponding path program 1 times [2022-10-17 10:36:38,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:38,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780124624] [2022-10-17 10:36:38,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:38,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:39,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:36:39,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:39,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780124624] [2022-10-17 10:36:39,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780124624] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:39,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:39,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:36:39,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612986056] [2022-10-17 10:36:39,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:39,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:36:39,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:39,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:36:39,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:36:39,287 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 250 [2022-10-17 10:36:39,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 347 transitions, 1338 flow. Second operand has 6 states, 6 states have (on average 166.83333333333334) internal successors, (1001), 6 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:39,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:36:39,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 250 [2022-10-17 10:36:39,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:36:40,863 INFO L130 PetriNetUnfolder]: 1057/3517 cut-off events. [2022-10-17 10:36:40,863 INFO L131 PetriNetUnfolder]: For 2239/2413 co-relation queries the response was YES. [2022-10-17 10:36:40,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8637 conditions, 3517 events. 1057/3517 cut-off events. For 2239/2413 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 24913 event pairs, 217 based on Foata normal form. 0/3378 useless extension candidates. Maximal degree in co-relation 8546. Up to 1726 conditions per place. [2022-10-17 10:36:40,902 INFO L137 encePairwiseOnDemand]: 228/250 looper letters, 273 selfloop transitions, 135 changer transitions 4/562 dead transitions. [2022-10-17 10:36:40,903 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 562 transitions, 3254 flow [2022-10-17 10:36:40,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:36:40,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:36:40,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1153 transitions. [2022-10-17 10:36:40,909 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7686666666666667 [2022-10-17 10:36:40,909 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1153 transitions. [2022-10-17 10:36:40,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1153 transitions. [2022-10-17 10:36:40,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:36:40,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1153 transitions. [2022-10-17 10:36:40,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 192.16666666666666) internal successors, (1153), 6 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:40,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:40,921 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:40,921 INFO L175 Difference]: Start difference. First operand has 258 places, 347 transitions, 1338 flow. Second operand 6 states and 1153 transitions. [2022-10-17 10:36:40,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 562 transitions, 3254 flow [2022-10-17 10:36:40,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 562 transitions, 3236 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-10-17 10:36:40,959 INFO L231 Difference]: Finished difference. Result has 268 places, 477 transitions, 2678 flow [2022-10-17 10:36:40,960 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=1320, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2678, PETRI_PLACES=268, PETRI_TRANSITIONS=477} [2022-10-17 10:36:40,961 INFO L287 CegarLoopForPetriNet]: 253 programPoint places, 15 predicate places. [2022-10-17 10:36:40,961 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 477 transitions, 2678 flow [2022-10-17 10:36:40,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.83333333333334) internal successors, (1001), 6 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:40,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:36:40,963 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:40,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-17 10:36:40,963 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-10-17 10:36:40,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:40,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1018956669, now seen corresponding path program 1 times [2022-10-17 10:36:40,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:40,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125325456] [2022-10-17 10:36:40,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:40,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:41,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:41,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:36:41,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:41,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125325456] [2022-10-17 10:36:41,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125325456] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:41,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:41,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:36:41,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383020800] [2022-10-17 10:36:41,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:41,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:36:41,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:41,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:36:41,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:36:41,905 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 250 [2022-10-17 10:36:41,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 477 transitions, 2678 flow. Second operand has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:41,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:36:41,908 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 250 [2022-10-17 10:36:41,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:36:43,415 INFO L130 PetriNetUnfolder]: 1055/3499 cut-off events. [2022-10-17 10:36:43,415 INFO L131 PetriNetUnfolder]: For 3986/4048 co-relation queries the response was YES. [2022-10-17 10:36:43,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10364 conditions, 3499 events. 1055/3499 cut-off events. For 3986/4048 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 24771 event pairs, 258 based on Foata normal form. 0/3407 useless extension candidates. Maximal degree in co-relation 10271. Up to 2152 conditions per place. [2022-10-17 10:36:43,479 INFO L137 encePairwiseOnDemand]: 235/250 looper letters, 331 selfloop transitions, 62 changer transitions 0/544 dead transitions. [2022-10-17 10:36:43,480 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 544 transitions, 3878 flow [2022-10-17 10:36:43,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:36:43,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-10-17 10:36:43,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1091 transitions. [2022-10-17 10:36:43,486 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7273333333333334 [2022-10-17 10:36:43,487 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1091 transitions. [2022-10-17 10:36:43,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1091 transitions. [2022-10-17 10:36:43,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:36:43,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1091 transitions. [2022-10-17 10:36:43,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 181.83333333333334) internal successors, (1091), 6 states have internal predecessors, (1091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:43,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:43,499 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 250.0) internal successors, (1750), 7 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:43,500 INFO L175 Difference]: Start difference. First operand has 268 places, 477 transitions, 2678 flow. Second operand 6 states and 1091 transitions. [2022-10-17 10:36:43,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 544 transitions, 3878 flow [2022-10-17 10:36:43,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 544 transitions, 3842 flow, removed 18 selfloop flow, removed 0 redundant places. [2022-10-17 10:36:43,564 INFO L231 Difference]: Finished difference. Result has 278 places, 526 transitions, 3268 flow [2022-10-17 10:36:43,566 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=2642, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3268, PETRI_PLACES=278, PETRI_TRANSITIONS=526} [2022-10-17 10:36:43,566 INFO L287 CegarLoopForPetriNet]: 253 programPoint places, 25 predicate places. [2022-10-17 10:36:43,567 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 526 transitions, 3268 flow [2022-10-17 10:36:43,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 167.5) internal successors, (1005), 6 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:43,568 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:36:43,568 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:43,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-17 10:36:43,568 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-10-17 10:36:43,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:43,569 INFO L85 PathProgramCache]: Analyzing trace with hash -138424030, now seen corresponding path program 1 times [2022-10-17 10:36:43,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:43,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382935756] [2022-10-17 10:36:43,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:43,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:43,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:45,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:36:45,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:45,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382935756] [2022-10-17 10:36:45,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382935756] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:45,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:45,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-17 10:36:45,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910772053] [2022-10-17 10:36:45,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:45,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-17 10:36:45,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:45,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-17 10:36:45,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-10-17 10:36:45,271 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 250 [2022-10-17 10:36:45,274 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 526 transitions, 3268 flow. Second operand has 13 states, 13 states have (on average 143.92307692307693) internal successors, (1871), 13 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:45,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:36:45,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 250 [2022-10-17 10:36:45,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:36:49,976 INFO L130 PetriNetUnfolder]: 1795/6038 cut-off events. [2022-10-17 10:36:49,976 INFO L131 PetriNetUnfolder]: For 9616/9738 co-relation queries the response was YES. [2022-10-17 10:36:50,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18994 conditions, 6038 events. 1795/6038 cut-off events. For 9616/9738 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 50847 event pairs, 244 based on Foata normal form. 48/5975 useless extension candidates. Maximal degree in co-relation 18885. Up to 1271 conditions per place. [2022-10-17 10:36:50,060 INFO L137 encePairwiseOnDemand]: 213/250 looper letters, 760 selfloop transitions, 232 changer transitions 7/1131 dead transitions. [2022-10-17 10:36:50,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 1131 transitions, 9732 flow [2022-10-17 10:36:50,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-17 10:36:50,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-10-17 10:36:50,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 4547 transitions. [2022-10-17 10:36:50,082 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6271724137931034 [2022-10-17 10:36:50,083 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 4547 transitions. [2022-10-17 10:36:50,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 4547 transitions. [2022-10-17 10:36:50,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:36:50,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 4547 transitions. [2022-10-17 10:36:50,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 156.79310344827587) internal successors, (4547), 29 states have internal predecessors, (4547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:50,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 250.0) internal successors, (7500), 30 states have internal predecessors, (7500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:50,132 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 250.0) internal successors, (7500), 30 states have internal predecessors, (7500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:50,132 INFO L175 Difference]: Start difference. First operand has 278 places, 526 transitions, 3268 flow. Second operand 29 states and 4547 transitions. [2022-10-17 10:36:50,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 1131 transitions, 9732 flow [2022-10-17 10:36:50,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 1131 transitions, 9536 flow, removed 98 selfloop flow, removed 0 redundant places. [2022-10-17 10:36:50,270 INFO L231 Difference]: Finished difference. Result has 319 places, 663 transitions, 5335 flow [2022-10-17 10:36:50,271 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=250, PETRI_DIFFERENCE_MINUEND_FLOW=3156, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=5335, PETRI_PLACES=319, PETRI_TRANSITIONS=663} [2022-10-17 10:36:50,272 INFO L287 CegarLoopForPetriNet]: 253 programPoint places, 66 predicate places. [2022-10-17 10:36:50,272 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 663 transitions, 5335 flow [2022-10-17 10:36:50,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 143.92307692307693) internal successors, (1871), 13 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:36:50,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:36:50,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:50,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-17 10:36:50,275 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-10-17 10:36:50,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:50,275 INFO L85 PathProgramCache]: Analyzing trace with hash 162009068, now seen corresponding path program 1 times [2022-10-17 10:36:50,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:50,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113190758] [2022-10-17 10:36:50,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:50,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat